2010-06-09 : changed absolute mean error from CRITICAL to NORMAL if less than...

2010-06-09 : changed absolute mean error from CRITICAL to NORMAL if less than an order of magnitude off
2010-06-09 : tables generated with min/max now being 3 sigma (from 2) and (20% form 5%)
2010-06-09 : Coord: depth_coord was wrongly defined as positive up, fixed